Gryposaurus monumentensis

† Gryposaurus monumentensis — a Late Cretaceous hadrosaurid from Utah's Kaiparowits Formation (~76 Ma). Massive herbivore (~10 m long, ~3,900 kg); the largest known Gryposaurus. Named for Grand Staircase-Escalante National Monument. Known from nearly complete specimens preserving skull crests and .

Diet & Feeding

Herbivore

Gryposaurus monumentensis was a plant-eating dinosaur. Herbivores typically fed on ferns, cycads, conifers, and other vegetation available during their era. Many herbivorous dinosaurs developed specialized teeth and digestive systems for processing tough plant material.

Time Period

Cretaceous Late Mesozoic Era

Gryposaurus monumentensis lived during the Cretaceous Late period of the Mesozoic Era, approximately 100,5 to 66,0 million years ago.

The final age of dinosaurs, featuring iconic species like Tyrannosaurus rex, Triceratops, and Velociraptor. Dinosaurs reached their peak diversity before the catastrophic asteroid impact at the Chicxulub crater ended the Mesozoic Era.